Study on evaluation of fetal scalp tissue pH value during labor
Li, W.; Li, T.; Ding, C.
Zhonghua Fu Chan Ke Za Zhi 31(3): 149-151
1996
ISSN/ISBN: 0529-567X PMID: 8758787 Document Number: 464006
To assess the predictive value of serial monitoring fetal scalp tissue pH value (tpH) during labor. Fifty two primipara with singleton and cephalic presentation were recruited during their active phase of labor after rupture of membrane. Their fetal scalp tpH were determined by a new type of alloy pH spiral electrode and pH-LS-1 sensor. These values were compared with the umbilical blood pH values (bpH) measured immediately after delivery. The fetal tpH values were significantly positive correlated with the bpH values (r = 0.822 and 0.725). The incidence of neonate asphyxia in tpH >or= 7.20 group was significantly lower than those to tpH<7.15 group. No adverse effect was observed in this study. Determination of fetal scalp tpH during labor is of predictive value and harmless fro detecting fetal distress.